Is 627 is a composite number or not ?
- As we already know that, the number having factors 1 and the number itself is the prime number.
- And numbers having more than these two factors are the composite numbers.
- To check whether the number 627 is composite or not first we have to find its factors.
Contents
Factors of 627:
- If we have taken numbers from 1, 2, 3…for checking factors of 627, we found that 627 has factors 1, 3, 11, 19, 33, 57, 209 and 627. Hence, we must say that 627 is a composite number.
- Thus, 627 is the composite number.
- If we multiply 627 by 1, 2, 3 then we get the multiples of 627 which are 627, 1254 and so on.
627 is a Composite number or Prime number
About the number 627:
- 627 has more than two factors which are 1, 3, 11, 19, 33, 57, 209 and 627 and hence it is the composite number.
- 627 is the odd composite number and it is not the perfect square also.
- If we divide 627 by 1, 3, 11, 19, 33, 57, 209 and 627 then we get remainder as zero. Hence, 1, 3, 11, 19, 33, 57, 209 and 627 are the factors of 627.
Note:
- 627 is not the perfect square.
- Factors of 627: 1, 3, 11, 19, 33, 57, 209 and 627
- Prime factors of 627: 3, 11, 19
Conclusion:
- 627 is the composite number which has factors 1, 3, 11, 19, 33, 57, 209 and 627.
- And hence, 627 is not the prime number.
Multiple Choice Questions:
1) 627 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 627 are
a) 1
b) 3, 11, 19
c) 1, 33, 57, 209 and 627
d) 1, 3, 11, 19, 33, 57, 209 and 627
Ans: b) 3, 11, 19
3) 627 is the odd composite number because
a) It has factors 1, 3, 11, 19, 33, 57, 209 and 627
b) It is divisible by 2
c) It is not divisible by 2
d) Both a and c
Ans: d) both a and c